Interests: I am a Professional Industrial Designer and experienced Patent Litigation Expert Witness. Expertise in Product Design, Design Research, User Interface Design, New Product Development (NPD),Human-Factors-Ergonomics and Human-Computer Interaction. More than 30 years' experience as thought-leader, researcher, designer/inventor and manager in research, product design and product development for the technology, consumer electronics, telecommunications, retail, medical, entertainment, musical equipment, musical instrument and banking industries, as well as others. Currently, I am the Managing Partner (Owner) of Wiederholt & Rickert Partners, LLC, a unique New Product Development, User Research, Design Research & Patent Litigation Expert Services firm, serving a variety of industries and product types. The firm generally does business under the names Don Rickert Research & Design™, Rickert Expert Group™ and Don Rickert Musical Instruments™ (DBA).